TWI455016B - Writing apparatus for an e-paper - Google Patents

Description

Electronic paper writing device

The present invention relates to a writing device, and more particularly to a writing device for electronic paper.

Flat Panel Display (FPD) is widely used in computer screens, mobile phones, personal digital assistants (PDAs), flat-panel TVs, multimedia devices and other electronic products because of its slimness, power saving and low radiation. on. In recent years, display manufacturers have developed an electronic paper (E-Paper), also known as an electrophoretic display (EPD), to further provide a more power-saving, thinner, softer and more portable display.

Referring to the conventional electronic paper 900 shown in FIG. 1, a pixel array module 910 having a plurality of pixel units 911 and a built-in write control module 920 are included. The write control module 920 is configured to display a corresponding picture according to a picture input signal to drive the pixel array module 910. The write control module 920 includes a data driving unit 921 for providing a plurality of data signals, and a scan driving unit 922 for providing a plurality of scan signals, wherein the data signals are under the control of the scan signals. The pixel units 911 are sequentially written to display the screen. However, since the write control module 920 is built in the electronic paper 900, the cost of the electronic paper 900 is difficult to reduce, and high softness cannot be provided, so it is quite limited in application.

Accordingly, it is an object of the present invention to provide a writing device for performing a writing operation on an electronic paper.

Thus, the writing device of the present invention comprises a write controller and a pixel array write unit.

The write controller is used to control the write operation. The write controller includes a data drive unit for providing a plurality of data signals, and a scan drive unit for providing a plurality of scan signals.

The pixel array writing unit is electrically connected to the data driving unit and the scan driving unit. The pixel array writing unit performs the writing operation on the electronic paper by using the data signals and the scanning signals.

When the writing device performs the writing operation, the pixel array writing unit is disposed on a paper side of the electronic paper, and the data signals are written into the electronic paper to display a corresponding one of the screens.

Another object of the present invention is to provide a writing device for performing a writing operation on an electronic paper having a plurality of write control electrodes.

Thus, the writing device of the present invention comprises a write controller and a device port.

The write controller is used to control the write operation. The write controller includes a data drive unit for providing a plurality of data signals to the write control electrodes of the electronic paper, and a scan drive unit for providing a plurality of scan signals to the electronic paper. The data signals are written to the write control electrodes of the electronic paper under the control of the scan signals to perform the write operation to display a corresponding one of the screens.

The device port is electrically connected to the data driving unit and the scan driving unit. The device port is used to provide an interface for feeding the data signals and the scan signals to an electronic paper port of the electronic paper.

The utility model has the advantages that the electronic paper does not need to be built in the writing device by using the writing device, so the cost of the electronic paper can be significantly reduced, and the softness of the electronic paper is not built in. The writing device is significantly improved to make it more flexible in application, so that the object of the present invention can be achieved.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Referring to FIG. 2 and FIG. 3, the writing device 100 of the electronic paper 200 according to the first preferred embodiment of the present invention includes a write controller 110 and a pixel array writing unit 120 electrically connected to the write controller 110. a display unit 130 electrically connected to the write controller 110, a memory unit 140 electrically connected to the write controller 110, an input unit 150 electrically connected to the write controller 110, and an electrical connection The positioning sensing unit 160 of the writing controller 110, a positioning fine adjustment mechanism 170 electrically connected to the positioning sensing unit 160, and a transmission unit 180 electrically connected to the positioning fine adjustment mechanism 170.

The write controller 110 includes a data driving unit 111 electrically connected to the pixel array writing unit 120, a scanning driving unit 112 electrically connected to the pixel array writing unit 120, and a screen write format read. Take unit 113.

The writing device 100 is configured to perform a writing operation on the electronic paper 200, and the writing controller 110 is used to control the writing operation. The data driving unit 111 is for providing a majority data signal. The scan driving unit 112 is for providing a plurality of scan signals. The pixel array writing unit 120 performs the writing operation on the electronic paper 200 by using the data signals and the scanning signals, and when the writing device 100 performs the writing operation, the pixel array writing unit 120 is disposed on a first paper side of the electronic paper 200, and the data signals are written into the electronic paper 200 to display a corresponding one of the screens.

The pixel array writing unit 120 includes a plurality of pixel writing areas 121. Each of the pixel writing areas 121 has a transistor 122 and a first write control electrode 123. The transistor 122 has a first end for receiving a data signal corresponding to one of the data signals, a gate terminal for receiving a scan signal corresponding to one of the scan signals, and an electrical connection to the first write The second end of the electrode 123 is controlled. The transistor 122 is configured to feed the corresponding data signal to the first write control electrode 123 under the control of the corresponding scan signal.

The writing device 100 can further include a second write control electrode 190. The second write control electrode 190 is electrically connected to the data driving unit 111 to receive a common voltage. When the writing operation is performed by the writing device 100, the second writing control electrode 190 is disposed on a second paper side of the electronic paper 200 opposite to the first paper surface to write the pixel array. The unit 120 uses the data signals to match the common voltage of the second write control electrode 190 with the scan signals to perform the write operation on the electronic paper to display the picture.

In another embodiment, the writing device 100 can omit the setting of the second write control electrode 190, and each of the pixel writing regions 121 has a first transistor, a second transistor, and two writes. Into the control electrode. The first transistor and the second transistor are respectively used to control the corresponding two data signals to be written into the two write control electrodes, thereby performing the write operation, that is, the embodiment is suitable for performing all writes. The control electrodes are all located on the same paper side of the electronic paper 200. The circuit structure of the pixel writing area 121 of the embodiment is a conventional technique and will not be described again.

The display unit 130 is configured to display an operation command and an operation state of the write controller 110 to control the write operation. The memory unit 140 is used to store the data signals and provide a memory space required for the write controller 110 to control the write operation. The input unit 150 is configured to receive an input command and the data signals.

The picture write format reading unit 113 is configured to read a picture write format corresponding to the electronic paper 200 provided by the picture write format providing unit 210 of the electronic paper 200, and the picture write format may include A piece of paper size, a resolution, and a write speed. The picture writing format providing unit 210 can provide the picture writing format to the picture writing format reading unit 113 by means of wired or wireless transmission. The picture writing format providing unit 210 is preferably an identification (Identification). ; ID) tag, and the picture write format reading unit 113 is preferably an ID reading unit. The write controller 110 further controls the write operation based on the picture write format.

The positioning sensing unit 160 is configured to sense the positioning unit 220 of the electronic paper 200 to generate a positioning sensing signal. In the operation of the writing device 100, after the electronic paper 200 is placed in a correct position, the writing controller 110 can generate the positioning sensing with a positioning confirmation level according to the positioning sensing unit 160. Signal to initiate the write operation.

The transmission unit 180 is for driving the electronic paper 200. The positioning fine adjustment mechanism 170 is for driving the transmission unit 180 to drive the electronic paper 200. In the operation of the writing device 100, after the electronic paper 200 is placed at a deviation position, the positioning fine adjustment mechanism 170 can generate the positioning sensing signal with a positioning deviation level according to the positioning sensing unit 160. To drive the transmission unit 180 to drive the electronic paper 200 into the correct position.

In another embodiment, the writing device 100 can omit the setting of the transmission unit 180, and the positioning fine adjustment mechanism 170 is used to finely adjust the setting positions of the first writing control electrodes 123. That is, in the operation of the writing device 100, after the electronic paper 200 is placed in the offset position, the positioning fine adjustment mechanism 170 can generate the positioning with the positioning deviation level according to the positioning sensing unit 160. The sensing signal is fine tuned to the set position at which the offset position can be matched to accurately perform the write operation.

Referring to FIG. 4, a writing device 300 of an electronic paper 400 according to a second preferred embodiment of the present invention includes a write controller 310, a device port 320 electrically connected to the write controller 310, and an electrical connection to the device 300. The display unit 330 of the write controller 310, the memory unit 340 electrically connected to the write controller 310, and the input unit 350 electrically connected to the write controller 310.

The write controller 310 includes a data driving unit 311 electrically connected to the device port 320, a scan driving unit 312 electrically connected to the device port 320, and a picture writing format reading unit 313. The data driving unit 311 is for providing a majority data signal. The scan driving unit 312 is for providing a plurality of scan signals.

The writing device 300 is configured to perform a writing operation on the electronic paper 400 through a transmission channel 500, and the transmission channel 500 electrically connects the device connection port 320 and the electronic paper 400 based on a detachable connection.

The electronic paper 400 includes a pixel array 410 of a plurality of pixel units 411, a picture writing format providing unit 420, and an electronic paper port 430. The pixel array 410 receives the data signals and the scan signals from the write controller 310 through the electronic paper port 430, the transmission channel 500, and the device port 320.

Each of the pixel units 411 includes a transistor 412 and a first write control electrode 413. The transistor 412 has a first end for receiving a data signal corresponding to one of the data signals, a gate terminal for receiving a scan signal corresponding to one of the scan signals, and an electrical connection to the first write The second end of the electrode 413 is controlled. The transistor 412 is configured to feed the corresponding data signal to the first write control electrode 413 under the control of the corresponding scan signal. That is, the data signals are written to the first write control electrodes 413 of the electronic paper 400 under the control of the scan signals to perform the write operation to display a corresponding one of the screens.

The electronic paper 400 can further include a second write control electrode 440 electrically connected to the electronic paper port 430. The second write control electrode 440 can receive a common voltage from the data driving unit 311 through the transmission channel 500 and the device connection 320. The common voltage of the second write control electrode 440 is used to match the data signals and the scan signals to perform the write operation on the pixel array 410 of the electronic paper 400 to display the picture.

In another embodiment, the electronic paper 400 can omit the setting of the second write control electrode 440, and each of the pixel units 411 has a first transistor, a second transistor, and two write control electrodes. . The first transistor and the second transistor are respectively used to control the corresponding two data signals to be written into the two write control electrodes, thereby performing the write operation, that is, the embodiment is suitable for performing all writes. The control electrode is located on the same paper side of the electronic paper 400. The circuit structure of the pixel unit 411 of the electronic paper 400 of the embodiment is a prior art and will not be described again.

The display unit 330 is configured to display an operation command of the write controller 310 to control the write operation and an operation state. The memory unit 340 is used to store the data signals and provide a memory space required for the write controller 310 to control the write operation. The input unit 350 is configured to receive an input command and the data signals.

The picture write format reading unit 313 is a picture write format corresponding to the electronic paper 400 provided by the picture write format providing unit 420 for reading the electronic paper 400, and the picture write format may include A piece of paper size, a resolution, and a write speed. The picture writing format providing unit 420 can provide the picture writing format to the picture writing format reading unit 313 by wire or wireless transmission. The picture writing format providing unit 420 is preferably a radio frequency identification. The (Radio Frequency Identification; RFID) tag, and the picture write format reading unit 313 is preferably an RFID reading unit. The write controller 310 further controls the write operation based on the picture write format.

In summary, by using the writing device of the present invention, the electronic paper does not need to be built in the writing device, so the cost of the electronic paper can be significantly reduced, and the softness of the electronic paper is not built in. The writing device is significantly improved to make it more flexible in application, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

100. . . Write device

110. . . Write controller

111. . . Data drive unit

112. . . Scan drive unit

113. . . Picture write format reading unit

120. . . Pixel array write unit

121. . . Pixel writing area

122. . . Transistor

123. . . First write control electrode

130. . . Display unit

140. . . Memory unit

150. . . Input unit

160. . . Positioning sensing unit

170. . . Positioning fine adjustment mechanism

180. . . Transmission unit

190. . . Second write control electrode

200. . . Electronic paper

210. . . Picture writing format providing unit

220. . . Positioning unit

300. . . Write device

310. . . Write controller

311. . . Data drive unit

312. . . Scan drive unit

313. . . Picture write format reading unit

320. . . Device connection埠

330. . . Display unit

340. . . Memory unit

350. . . Input unit

400. . . Electronic paper

410. . . Pixel array

411. . . Pixel unit

412. . . Transistor

413. . . First write control electrode

420. . . Picture writing format providing unit

430. . . Electronic paper connection埠

440. . . Second write control electrode

500. . . Transmission channel

Figure 1 is a schematic view showing the state of a conventional electronic paper;

Figure 2 is a circuit diagram showing a first preferred embodiment of the writing device of the present invention;

3 is a schematic structural view showing a state in which the writing device performs an electronic paper writing operation; and

Figure 4 is a circuit diagram showing a second preferred embodiment of the writing device of the present invention and its implementation of an electronic paper writing operation.

100. . . Write device

110. . . Write controller

111. . . Data drive unit

112. . . Scan drive unit

113. . . Picture write format reading unit

120. . . Pixel array write unit

121. . . Pixel writing area

122. . . Transistor

123. . . First write control electrode

130. . . Display unit

140. . . Memory unit

150. . . Input unit

160. . . Positioning sensing unit

170. . . Positioning fine adjustment mechanism

180. . . Transmission unit

190. . . Second write control electrode

Claims (13)

A writing device for performing a writing operation on an electronic paper, the writing device comprising: a writing controller for controlling the writing operation, the writing controller comprising: a data driving unit, Providing a plurality of data signals, a scan driving unit for providing a plurality of scanning signals, and a picture writing format reading unit for reading one of the electronic paper sheets by a wired or wireless transmission method. a picture writing format, the picture writing format including at least information about a paper size, a resolution, and/or a writing speed of the electronic paper; and a pixel array writing unit electrically connected to the data driving unit and the Scanning driving unit, the pixel array writing unit performs the writing operation on the electronic paper by using the data signals and the scanning signals; wherein the pixel array is written when the writing device performs the writing operation The input unit is disposed on a first paper side of the electronic paper, and the data signals are written into the electronic paper to display a corresponding one of the pictures, and the writing controller is according to the drawing The face write format controls this write operation. The writing device of claim 1, further comprising: a display unit electrically connected to the write controller, wherein the display unit is configured to display the write controller to control one of the write operations Instructions and an operating state. The writing device according to claim 1, further comprising: a memory unit electrically connected to the writing controller, wherein the memory unit is configured to store the data signals and provide the writing controller to control the Write one of the memory spaces required for operation. The writing device according to claim 1, further comprising: an input unit electrically connected to the write controller, wherein the input unit is configured to receive an input command and the data signals. The writing device of claim 1, wherein the pixel array writing unit comprises a plurality of pixel writing regions, each of the pixel writing regions having a transistor and a first write control electrode. The first end of the transistor is configured to receive one of the data signals corresponding to the data signal, and one of the gates of the transistor is configured to receive one of the scan signals corresponding to the scan signal, and the second one of the transistors The terminal is electrically connected to the first write control electrode. The writing device of claim 5, further comprising: a second write control electrode electrically connected to the data driving unit to receive a common voltage; wherein the writing operation is performed by the writing device The second write control The electrode is disposed on a second paper side of the electronic paper opposite to the first paper surface, so that the pixel array writing unit uses the data signals to cooperate with the scan signals to match the second write control electrode The shared voltage displays the picture by performing the writing operation on the electronic paper. The writing device of claim 5, further comprising: a positioning sensing unit electrically connected to the writing controller, wherein the positioning sensing unit is configured to sense one of the positioning units of the electronic paper Generating a positioning sensing signal, wherein after the electronic paper is placed in a correct position, the writing controller can generate the positioning sensing signal with a positioning confirmation level according to the positioning sensing unit to activate the positioning a writing operation; and a positioning fine adjustment mechanism electrically connected to the positioning sensing unit, wherein the positioning fine adjustment mechanism is configured to finely adjust a setting position of the first writing control electrodes, wherein the electronic paper is placed in a deviation After the position, the positioning fine adjustment mechanism can finely adjust the first write control electrodes to match the deviation position to accurately perform the writing according to the positioning sensing signal generated by the positioning sensing unit with a positioning deviation level. Enter the location of the operation. The writing device of claim 1, further comprising: a positioning sensing unit electrically connected to the writing controller, wherein the positioning sensing unit is configured to sense one of the positioning units of the electronic paper Generate a position a sensing signal, wherein after the electronic paper is placed in a correct position, the writing controller can generate the positioning sensing signal with a positioning confirmation level according to the positioning sensing unit to start the writing operation. a transmission unit for driving the electronic paper; and a positioning fine adjustment mechanism electrically connected to the positioning sensing unit and the transmission unit, wherein the positioning fine adjustment mechanism is configured to drive the transmission unit to drive the electronic paper, wherein After the electronic paper is placed in a deviation position, the positioning fine adjustment mechanism can generate the positioning sensing signal with a positioning deviation level according to the positioning sensing unit to drive the transmission unit to drive the electronic paper into the The correct location. A writing device for performing a writing operation on an electronic paper having a plurality of first writing control electrodes, the writing device comprising: a writing controller for controlling the writing operation, the writing control The device includes: a data driving unit for providing a plurality of data signals to the first writing control electrodes of the electronic paper, and a scanning driving unit for providing a plurality of scanning signals to the electronic paper, wherein the data signals are Writing, by the control of the scan signals, the first write control electrodes of the electronic paper to perform the write operation to display a corresponding one of the screens, and a picture writing format reading unit that reads a picture writing format provided by one of the picture writing format providing units of the electronic paper by wired or wireless transmission, the picture writing format including at least a paper about the electronic paper Information about size, resolution, and/or write speed for the write controller to control the write operation; and a device connection 电 electrically connected to the data drive unit and the scan drive unit, the device connection An interface for providing the data signals and the scan signals to the electronic paper port of the electronic paper. The writing device according to claim 9 , further comprising: a display unit electrically connected to the write controller, wherein the display unit is configured to display the write controller to control one of the write operations Instructions and an operating state. The writing device of claim 9, further comprising: a memory unit electrically connected to the write controller, wherein the memory unit is configured to store the data signals and provide the write controller to control the Write one of the memory spaces required for operation. The writing device according to claim 9 further comprising: an input unit electrically connected to the write controller, wherein the input unit is configured to receive an input command and the data signals. The writing device of claim 9, wherein the data driving unit is further configured to provide a common voltage, and the common voltage is fed to the electronic paper through a connection between the device and the electronic paper. A second write control electrode, and the write controller uses the data signals to match the common voltage with the scan signals to perform the write operation on the electronic paper to display the picture.